code: def testEmpty(self):
      self.assertComputeFails(SilenceRate(thresholds=[0.1]), [])
  
file_path: essentia/test/src/unittests/standard/test_silencerate.py
imports: from essentia_test import *
  from essentia import *
  from numpy import random
label_desc: Use image node_id 5 for calling the TestSilenceRate obj's underlying member method code with example usage: obj.testEmpty() without return types